77 entries under tough topic. ×

6
rigid(adjective, firm, unreasonable, inflexible)
6
steadfast(adjective, firm, determined, unreasonable)
6
stern(adjective, hard, rough, harsh)
6
uncooperative(adjective, difficult, wild, awkward)
5
relentless(adjective, strong, cold, determined)
4
balky(firm, cross, negative, hostile)
4
fixed(adjective, firm, determined, unreasonable)
4
indomitable(adjective, violent, wild, awkward)
3
hard-nosed(adjective, hard, rough, harsh)
3
pat(adjective, difficult, determined, resolute)
3
wild(adjective, difficult, passionate, violent)
2
incompliant(adjective, firm, difficult, awkward)
2
ornery(adjective, firm, cross, passionate)
2
single-minded(adjective, firm, unreasonable, grim)
2
unpliable(difficult, awkward, obstinate, stubborn)
1
awkward(difficult, obstinate, irrational, stubborn)
1
callous(adjective, hard, severe, rough)
1
cantankerous(firm, awkward, unreasonable, fixed)
1
cussed(adjective, firm, passionate, unstable)
1
difficult(adjective, awkward, obstinate, irrational)
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APASmart Define. (2015). headstrong thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/headstrong/thesaurus/synonyms
ChicagoSmart Define. 2015. "headstrong thesaurus" https://smartdefine.org/headstrong/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, headstrong thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/headstrong/thesaurus/synonyms>.
MLASmart Define. "headstrong thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/headstrong/thesaurus/synonyms>